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351 lines
11 KiB
JavaScript
351 lines
11 KiB
JavaScript
// 获取配置
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const createConfig = safeRequire('uni-config-center')
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const {QuillDeltaToHtmlConverter, QuillDeltaToJSONConverter} = safeRequire('quill-delta-converter')
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const config = createConfig({
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pluginId: 'uni-cms'
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}).config()
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// 获取数据库实例
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const db = uniCloud.database()
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// 文章数据库名称
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const articleDBName = 'uni-cms-articles'
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// 解锁内容数据库名称
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const unlockContentDBName = 'uni-cms-unlock-record'
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// 安全检测文本内容
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async function checkContentSec(content, requestId, errorMsg) {
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// 安全引入内容安全检测模块
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const UniSecCheck = safeRequire('uni-sec-check')
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// 创建内容安全检测实例
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const uniSecCheck = new UniSecCheck({
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provider: 'mp-weixin',
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requestId
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})
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// 调用文本安全检测接口
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const res = await uniSecCheck.textSecCheck({
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content, // 待检测的文本内容
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scene: 1, // 表示资料类场景
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version: 1 // 调用检测API的版本号
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})
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// 如果存在敏感词,抛出异常
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if (res.errCode === uniSecCheck.ErrorCode.RISK_CONTENT) {
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throw new Error(errorMsg || '存在敏感词,请修改后提交')
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} else if (res.errCode !== 0) {
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console.error(res)
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throw new Error('内容安全检测异常:' + res.errCode)
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}
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}
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// 安全检测图片内容
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async function checkImageSec(image, requestId, errorMsg) {
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// 安全引入内容安全检测模块
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const UniSecCheck = safeRequire('uni-sec-check')
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// 创建内容安全检测实例
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const uniSecCheck = new UniSecCheck({
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provider: 'mp-weixin',
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requestId
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})
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const images = typeof image === "string" ? [image]: image
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for (let item of images) {
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// 处理cloud://开头的链接
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if (item.startsWith('cloud://')) {
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const res = await uniCloud.getTempFileURL({
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fileList: [item]
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})
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if (res.fileList && res.fileList.length > 0) {
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item = res.fileList[0].tempFileURL
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}
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}
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// 调用图片安全检测接口
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const res = await uniSecCheck.imgSecCheck({
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image: item, // 待检测的图片URL
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scene: 1, // 表示资料类场景
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version: 1 // 调用检测API的版本号
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})
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// 如果存在违规内容,抛出异常
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if (res.errCode === uniSecCheck.ErrorCode.RISK_CONTENT) {
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throw new Error(errorMsg || '图片违规,请修改后提交')
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} else if (res.errCode !== 0) {
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console.error(res)
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throw new Error('内容安全检测异常:' + res.errCode)
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}
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}
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}
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// 检测内容安全开关
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function checkContentSecurityEnable(field) {
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// 1. 从配置中心获取配置
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return config.contentSecurity && config.contentSecurity.allowCheckType && config.contentSecurity.allowCheckType.includes(field)
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}
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// 安全require
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function safeRequire(module) {
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try {
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return require(module)
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} catch (e) {
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if (e.code === 'MODULE_NOT_FOUND') {
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throw new Error(`${module} 公共模块不存在,请在 uniCloud/database 目录右击"配置schema扩展公共模块"添加 ${module} 模块`)
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}
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}
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}
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module.exports = {
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trigger: {
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// 创建文章前触发
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beforeCreate: async function ({clientInfo, addDataList}) {
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// addDataList 是一个数组,因为可以一次性创建多条数据
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if (addDataList.length <= 0) return
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// 检测内容安全开关
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const allowCheckContent = checkContentSecurityEnable('content')
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const allowCheckImage = checkContentSecurityEnable('image')
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// 遍历数组,对每一条数据进行安全检测
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for (const addData of addDataList) {
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// 如果是草稿,不检测
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if (addData.article_status !== 1) continue
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// 并行检测
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const parallel = []
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// 检测标题
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if (allowCheckContent && addData.title) {
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parallel.push(checkContentSec(addData.title, clientInfo.requestId, '标题存在敏感字,请修改后提交'))
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}
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// 检测摘要
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if (allowCheckContent && addData.excerpt) {
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parallel.push(checkContentSec(addData.excerpt, clientInfo.requestId, '摘要存在敏感字,请修改后提交'))
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}
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// 检测内容
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if (allowCheckContent && addData.content) {
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parallel.push(checkContentSec(JSON.stringify(addData.content), clientInfo.requestId, '内容存在敏感字,请修改后提交'))
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}
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// 检测封面图
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if (allowCheckImage && addData.thumbnail) {
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parallel.push(checkImageSec(addData.thumbnail, clientInfo.requestId, '封面图存在违规,请修改后提交'))
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}
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// 等待所有并行检测完成
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await Promise.all(parallel)
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}
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},
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// 更新文章前触发
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beforeUpdate: async function ({clientInfo, where, updateData}) {
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const id = where && where._id
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if (!id) return
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// 如果是草稿,不检测
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if (updateData.article_status !== 1) return
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// 检测内容安全开关
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const allowCheckContent = checkContentSecurityEnable('content')
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const allowCheckImage = checkContentSecurityEnable('image')
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// 并行检测
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const parallel = []
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// 检测标题
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if (allowCheckContent && updateData.title) {
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parallel.push(checkContentSec(updateData.title, clientInfo.requestId, '标题存在敏感字,请修改后提交'))
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}
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// 检测摘要
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if (allowCheckContent && updateData.excerpt) {
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parallel.push(checkContentSec(updateData.excerpt, clientInfo.requestId, '摘要存在敏感字,请修改后提交'))
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}
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// 检测内容
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if (allowCheckContent && updateData.content) {
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parallel.push(checkContentSec(JSON.stringify(updateData.content), clientInfo.requestId, '内容存在敏感字,请修改后提交'))
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}
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// 检测封面图
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if (allowCheckImage && updateData.thumbnail) {
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parallel.push(checkImageSec(updateData.thumbnail, clientInfo.requestId, '封面图存在违规,请修改后提交'))
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}
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// 等待所有并行检测完成
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await Promise.all(parallel)
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},
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// 读取文章后触发
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afterRead: async function ({userInfo, clientInfo, result, where, field}) {
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const isAdmin = field && field.length && field.includes('is_admin')
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// 检查是否配置了clientAppIds字段,如果没有则抛出错误
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if ((!config.clientAppIds || !config.clientAppIds.length) && !isAdmin) {
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throw new Error('请在 uni-cms 配置文件中配置 clientAppIds 字段后访问,详见:https://uniapp.dcloud.net.cn/uniCloud/uni-cms.html#uni-cms-config')
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}
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// 如果clientAppIds字段未配置或当前appId不在clientAppIds中,则返回
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if (!config.clientAppIds || !config.clientAppIds.includes(clientInfo.appId)) return
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// 获取广告配置
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const adConfig = config.adConfig || {}
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// 获取文章id
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const id = where && where._id
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// 如果id不存在或者field不包含content,则返回
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if (id && field.includes('content')) {
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// 读取了content字段后view_count加1
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await db.collection(articleDBName).where(where).update({
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view_count: db.command.inc(1)
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})
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}
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// 如果查询结果为空,则返回
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if (!result.data || result.data.length <= 0) return
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// 获取文章
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const article = result.data[0]
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// 如果文章内容不存在,则返回
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if (!article.content) return
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let needUnlock = false
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let unlockContent = []
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// 获取文章内容中的图片
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article.content_images = article.content.ops.reduce((imageBlocks, block) => {
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if (!block.insert.image) return imageBlocks
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const {attributes} = block
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const {'data-custom': custom = ""} = attributes || {}
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const parseCustom = custom.split('&').reduce((obj, item) => {
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const [key, value] = item.split('=')
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obj[key] = value
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return obj
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})
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return imageBlocks.concat(
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parseCustom.source ||
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block.insert.image
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)
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}, [])
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for (const op of article.content.ops) {
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unlockContent.push(op)
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// 遍历文章内容,找到解锁内容
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if (op.insert.unlockContent) {
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needUnlock = true
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break
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}
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}
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// 如果文章不需要解锁,则返回
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if (!needUnlock) {
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article.content = getRenderableArticleContent(article.content, clientInfo)
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return
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}
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// 获取唯一标识符
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const uniqueId = adConfig.watchAdUniqueType === 'user' ? userInfo.uid : clientInfo.deviceId
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// 如果未登录或者文章未解锁,则返回解锁内容
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if (!uniqueId || !article._id) {
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article.content = getRenderableArticleContent({
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ops: unlockContent
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}, clientInfo)
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return
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}
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// 查询解锁记录
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const unlockRecord = await db.collection(unlockContentDBName).where({
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unique_id: uniqueId,
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article_id: article._id
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}).get()
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// 如果未解锁,则返回解锁内容
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if (unlockRecord.data && unlockRecord.data.length <= 0) {
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article.content = getRenderableArticleContent({
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ops: unlockContent
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}, clientInfo)
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return
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}
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// 将文章解锁替换为行结束符 \n
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article.content = getRenderableArticleContent({
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ops: article.content.ops.map(op => {
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if (op.insert.unlockContent) {
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op.insert = "\n"
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}
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return op
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})
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}, clientInfo)
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}
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}
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}
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function getRenderableArticleContent (rawArticleContent, clientInfo) {
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const isUniAppX = /uni-app-x/i.test(clientInfo.userAgent)
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if (!isUniAppX) {
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const quillDeltaConverter = new QuillDeltaToJSONConverter(rawArticleContent.ops)
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return quillDeltaConverter.convert()
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}
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const deltaOps = []
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for (let i = 0; i < rawArticleContent.ops.length; i++) {
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const op = rawArticleContent.ops[i]
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if (typeof op.insert === 'object') {
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const insertType = Object.keys(op.insert)
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const blockRenderList = ['image', 'divider', 'unlockContent', 'mediaVideo']
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if (insertType && insertType.length > 0 && blockRenderList.includes(insertType[0])) {
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deltaOps.push({
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type: insertType[0],
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ops: [op]
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})
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// 一般块级节点后面都跟一个换行,需要把这个换行给去掉
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const nextOps = rawArticleContent.ops[i + 1]
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if (nextOps && nextOps.insert === '\n') {
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i ++
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}
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continue
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}
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}
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const currentIndex = deltaOps.length > 0 ? deltaOps.length - 1: 0
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if (
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typeof deltaOps[currentIndex] !== "object" ||
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(deltaOps[currentIndex] && deltaOps[currentIndex].type !== 'rich-text')
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) {
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deltaOps.push({
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type: 'rich-text',
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ops: []
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})
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}
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deltaOps[deltaOps.length - 1].ops.push(op)
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}
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return deltaOps.reduce((content, item) => {
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const isRichText = item.type === 'rich-text'
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let block = {
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type: item.type,
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data: isRichText ? item.ops: item.ops[0]
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}
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if (item.type === 'rich-text') {
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const lastOp = item.ops.length > 0 ? item.ops[item.ops.length - 1]: null
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if (lastOp !== null && lastOp.insert === "\n") {
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item.ops.pop()
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}
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const quillDeltaConverter = new QuillDeltaToHtmlConverter(item.ops)
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block.data = quillDeltaConverter.convert()
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}
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return content.concat(block)
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}, [])
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}
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